#include <iostream>
#include <cstdio>
#include <algorithm>
#include <set>
#include <map>
#include <vector>
#include <unordered_map>
#include <unordered_set>
#define int long long
#define x first 
#define y second  
using namespace std;
const int N = 2e6 + 10;
void solve()
{
   
}
signed main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr),cout.tie(nullptr);
    int t = 1;
    while(t -- )  solve();
    return 0;
}